Science Crime Busters B

Chemistmax
Member
Member
Posts: 19
Joined: October 28th, 2010, 2:41 pm
Division: B
State: GA

Re: Science Crime Busters B

Postby Chemistmax » October 29th, 2010, 2:34 pm

The last time i did this event was in 5th Grade, (i'm glad there are no more mystery events)

User avatar
karatekid44
Member
Member
Posts: 119
Joined: February 10th, 2009, 5:16 pm
Division: B
State: PA
Location: Im on a boat

Re: Science Crime Busters B

Postby karatekid44 » November 2nd, 2010, 12:43 pm

I personally missed the burning fiber tests, and plastic tests. Because you got to play with fire, an you got to burn things.
They had it when I was in sixth grade, took it away when I was in seventh grade, then brought it back this year.
My Brother USCGA-2012
I'm On A Boat
The Bloodhound Gang
Don't put the stick there! Thats what she said!
Ah Science Olympiad give perfect opportunities for thats what she said jokes.

EpicFailure
Member
Member
Posts: 82
Joined: October 24th, 2010, 1:44 pm
Division: C
State: WI

Re: Science Crime Busters B

Postby EpicFailure » November 2nd, 2010, 1:05 pm

Does anyone know some good links to analyzing burn test results for plastics? Also, what are some density solutions used to determine a plastic's density?

User avatar
frogzorz
Member
Member
Posts: 126
Joined: October 13th, 2009, 12:41 pm
Division: Grad
State: PA
Location: Philadelphia, PA
Contact:

Re: Science Crime Busters B

Postby frogzorz » November 2nd, 2010, 2:43 pm

Does anyone know some good links to analyzing burn test results for plastics? Also, what are some density solutions used to determine a plastic's density?
You should check the wiki for more info.
remember, water has a density of 1...
Harriton '15, Penn C'19
Design Manager and Disease Detectives co-supervisor for SOUP 2018
Image

EpicFailure
Member
Member
Posts: 82
Joined: October 24th, 2010, 1:44 pm
Division: C
State: WI

Re: Science Crime Busters B

Postby EpicFailure » November 2nd, 2010, 2:47 pm

There's not that much info on plastics on wiki. Also, using the steps in the wiki, it's kind of hard to to differ HDPE from LDPE.

User avatar
frogzorz
Member
Member
Posts: 126
Joined: October 13th, 2009, 12:41 pm
Division: Grad
State: PA
Location: Philadelphia, PA
Contact:

Re: Science Crime Busters B

Postby frogzorz » November 2nd, 2010, 6:37 pm

HDPE is slightly more transluceennnt...
Huh!? What was that?
Harriton '15, Penn C'19
Design Manager and Disease Detectives co-supervisor for SOUP 2018
Image

User avatar
Hanelia
Member
Member
Posts: 6
Joined: August 24th, 2010, 11:57 am
Division: B
State: WI

Re: Science Crime Busters B

Postby Hanelia » November 3rd, 2010, 2:21 pm

The last time i did this event was in 5th Grade, (i'm glad there are no more mystery events)
Fifth grade? Is there Scioly in elementary? If so, what division is that...
And HDPE is High Density Polyethyne.

EpicFailure
Member
Member
Posts: 82
Joined: October 24th, 2010, 1:44 pm
Division: C
State: WI

Re: Science Crime Busters B

Postby EpicFailure » November 4th, 2010, 3:17 pm

The last time i did this event was in 5th Grade, (i'm glad there are no more mystery events)
Fifth grade? Is there Scioly in elementary? If so, what division is that...
And HDPE is High Density Polyethyne.
No...frogzorz meant something in the wiki. Well, if you only have to identify one of the two, you can't tell which is the mystery plastic. It was like cornstarch and flour last year. And there is scioly in elementary, it's not very common or official though.

User avatar
frogzorz
Member
Member
Posts: 126
Joined: October 13th, 2009, 12:41 pm
Division: Grad
State: PA
Location: Philadelphia, PA
Contact:

Re: Science Crime Busters B

Postby frogzorz » November 8th, 2010, 12:55 pm

Sci. Oly. in Elementary Schools are divisions A1-A3. I think. Not sure about how common it is.
Flour is off white, a little yellow. Cornstarch is totally white. If all else fails (in terms of color-blindness), think of Oobleck.
I'm thinking about memorizing the polymers from here on. Resin Identification Code will now be known as RIC(K). RIC 1 is PETE. RIC 2 is HDPE. RIC 3 is PVC. RIC 4 is LDPE. RIC 5 is PP. RIC 6 is PS. w00t. :D
Harriton '15, Penn C'19
Design Manager and Disease Detectives co-supervisor for SOUP 2018
Image

poparteeb2
Member
Member
Posts: 29
Joined: May 11th, 2010, 12:50 pm
Division: C
State: NY

Re: Science Crime Busters B

Postby poparteeb2 » November 17th, 2010, 1:54 pm

Hey guys, kinda need some help here for hairs...>.<

Somehow, when I put the hairs under the microscope, they look NOTHING like what they're supposed to look like on the diagrams...

Anyone have any advice on dog/cat/human hair and what to do about it? Maybe I'm using a bad reference sheet...so a website with accurate diagrams would be good as well. Grr.

Thanks guys :)
Regionals: 1st place Crime, 1st place Anatomy, 3rd place Experimental Design.
States: 1st Place Anatomy, 2nd Place Experimental Design, 6th Place Crime, 26th Place Powders *wince*
Nationals: 4th place Anatomy, 4th place Crime, 30th Powders *wince again*
Overall team ranking: 7th


Return to “2011 Lab Events”

Who is online

Users browsing this forum: No registered users and 1 guest